Measuring tape



P E. A]. JOHANS-SON ,129,582

MEASURING TAPE Filed Dec. 10, 1955 L -vqr E by 6 INVENTbR. EB BE A. I. J OHANSSON Maw MW A'TTORNEIY.

Patented Sept. 6, 1938 r 2,129,582.

UNITED STATES PATENT OFFICE MEASURING TAPE Ebbe Anders Israel Johansson, Smalandsstenar, Sweden Application December 10, 1935, Serial No. 53,808 In Sweden November 27, 1934 1 Claim. (Cl. 33179) The present invention relates to devices for the pin has a square cross section, so as to measuring the circumference of objects which prevent the pin Ill from rotating. Between the devices consist of a graduated flexible tape, the inner end of the pin l0 and the cover or side one end of which is secured to the outer circum- Wall 3 the-re is inserted a spring l2 which tends ference of a casing and the other end of which is to keep a cross pin it, secured to the inner end 5 secured to and wound upon a drum rotatably of the pin l0, into contact with the teeth 9. mounted within the casing and actuated by a These teeth are so formed that, when the cross spring, against the action of which the tape may pin l3 occupies the operative position shown be pulled out of the casing through an opening in in Figure 5, the drum 4 may be rotated in the the wall of the casing situated on a distance from direction indicated by the arrow in Figure 4 10 the point, where the outer end of the tape is but not in the opposite direction. If the pin l0 secured to the casing. be pushed to the position shown in Figure 6 the More particularly the invention relates to de-. cross pin l3 will be brought out of contact with vices of the kind referred to which are provided the teeth so that the drum 4 may be rotated in on the one hand with a ratchet mechanism which both directions. 15 temporarily keeps the drum against the action of To the drum 4 there is secured the one end of the spring, and on the other hand with a releasa flexible graduated tape l5, which is wound on ing mechanism accessible from the outside of the the drum and the other end of which is passed casing and adapted to bring the ratchet mechthrough a channel 16 formed in the wall of the 20 anism out of operative position so as to permit casing. The outer orifice I? of said channel I6 20 the spring to automatically pull in the tape into is located at the one end of a radially projecting the casing. portion [8 of the casing, and to the other end of The object of the invention is to provide an said portion IS the outer end of the tape I5 is improved measuring device of the kind referred secured by means of a loop or eye l9 passing to which is simple in construction and which through ahole 29 in said portion H3. The surface 25 may easily be manipulated with one hand so as 2| of the portion I8 which is located between to enable a person to measure the circumference the orifice ll of the channel it and the hole 20 on different places of his arms in order to control has a concave shape, and the graduation of the the result on the muscles of gymnastic exercises tape begins with a value, which corresponds to 30 or the like. the lengths of said surface 2!. 30

In the accompanying drawing Figure 1 is a side If a person wishes to measure the circumferview of a measuring device constructed in accordence of for instance his left forearm he pulls a ance with my invention. Figures 2 and 3 show suitable length of the tape out of the casing; the measuring device seen from two other sides. whereupon he inserts his left arm (indicated by Figure 4 is a side view of the device on a larger dotted line in Figure 3) in the loop thereby 35 scale with some parts removed. Figure 5 is a formed by the tape, keeping the casing with transverse sectional view of the device, and Figure his right hand. If he pushes the pin II] to the 6 shows certain details of the device in another position shown in Figure 6 and keeps the conworking position. cave surface 2| of the projection l8 against the Referring to t d a ing by numerals, l denotes arm, the spring 5 will rotate the drum 4 on which 40 a casing Of Sub t a y Circular Shape, the one the tape l5 will be wound until the portion of the side wall 2 of which iS Secu ed y means 0f tape pulled out of the casing places itself around screws 3. Within said casing there is rotatably th arm (see Figure 3). Owing to the fact that mounted a drum 4, within which there is located t graduation of t tape begins. t value a spring 5, the One e of Which is secured to the including the length of the concave face 2| of the 45 drum, while the other end is s cu ed to an ehhllprojection l 8 the size of the circumference of the Central portion 6 0f the Cesihg- The drum arm may be directly read on the tape at the outer 4 is provided with a partition wall 1, which is orifice [1 of th cha l is, at the One Side P Ovided with an annular groove Having thus described my invention, I claim:

8 embracing the annular portion 6 of the casing, A device for measuring the periphery of n 5 and at the other side with a series of teeth 9. drical objects comprising in combination Central y in the Casing there is provided a pin ing, a graduated flexible tape coiled within said In the one end lla Of Which projects through a casing, resilient means tending to hold said tape ho e II in the Side Well 0f the casing; The in its coiled position and a portion of said casing hole I has Sq Shape and t e end a of extended to form a shoulder thereon and having 55 the length of the outer face thereof concave, said portion having a passageway for said tape formed th-erethrough from one end of said concave side to the interior of said casing, said passageway being substantially parallel to the adjacent end portion of the concave side of said shoulder, means connecting the end of said tape extending through said passageway to the opposite end of said concave side and graduations of said tape beginning at the joined end thereof with a value equal to the length of said concave side of said shoulder.

EBBE ANDERS ISRAEL JOHANSSON. 

